Math, asked by vomikakarnati7, 5 hours ago

Which of the following is a polynomial? Give reason for your answer. (a) y3 + 3√x b) x-2 + x-1 + 3 (c) 3x - √5 (d) √2 3 x + 5x2​

Answers

Answered by Anushkas7040
1

Answer:

all are polynomials except a ie

3y + 3 \sqrt{x}

Step-by-step explanation:

a)

3y + 3  \sqrt{x}

No, it is not a polynomial as in this case the power of the variable is 1/2 but in a polynomial, the power of the variable is always a non-negative integer.

 3y + 3 \sqrt{x}  =  > 3y + 3{x}^{ \frac{1}{2} }

b)

x - 2 + x - 1 + 3 =  > 2x

Yes as the power of the variable, in this case, is 1 which is a non-negative integer.

c)

3x  - \sqrt{5}

Yes as the power of the variable, in this case, is 1 which is a non-negative integer.

d)

 3\sqrt{2} x + 5x2 =  > 3 \sqrt{2} x + 10x

Yes as the power of the variable, in this case, is 1 which is a non-negative integer.

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